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viaduct

American  
[vahy-uh-duhkt] / ˈvaɪ əˌdʌkt /

noun

  1. a bridge for carrying a road, railroad, etc., over a valley or the like, consisting of a number of short spans.


viaduct British  
/ ˈvaɪəˌdʌkt /

noun

  1. a bridge, esp for carrying a road or railway across a valley, etc, consisting of a set of arches supported by a row of piers or towers

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of viaduct

1810–20; < Latin via way + (aque)duct

Explanation

A viaduct is a bridge made of connected sections. Most viaducts are a series of arches that span a road. Some viaducts stretch across train tracks, while other carry traffic across valleys, gorges, or bodies of water. What's distinctive about older viaducts is that they're usually made of equal-sized arches all linked into one long bridge. Newer viaducts can look simply like an elevated road or highway. The word viaduct combines the Latin via, or "road," with ducere, "to lead something."

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Vocabulary lists containing viaduct

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

With its long arches and lights looming over the viaduct, the 6th Street Bridge has become a beacon for Angelenos and the curious.

From Los Angeles Times • Feb. 18, 2026

Dozens more were also injured in weather-related incidents in Spain, and a viaduct in Portugal partially collapsed because of flooding.

From Barron's • Feb. 13, 2026

Remnants of donated props and floats from parades past lie around the space under a viaduct that doubles as a driving school parking lot.

From Barron's • Feb. 13, 2026

"The viaduct holds such a special place in my family's heart, it is devastating to see the collapse of such a well-loved and iconic landmark."

From BBC • Dec. 14, 2025

He dashed across the Adams Street viaduct and was shocked at what he saw.

From "The Great Fire" by Jim Murphy